Synchronizing eye tracking and optical motion capture : How to bring them together
Burger, B., Puupponen, A., & Jantunen, T. (2018). Synchronizing eye tracking and optical motion capture : How to bring them together. Journal of Eye Movement Research, 11(2), 1-16. https://doi.org/10.16910/jemr.11.2.5
Julkaistu sarjassa
Journal of Eye Movement ResearchPäivämäärä
2018Tekijänoikeudet
© the Authors, 2018.
Both eye tracking and motion capture technologies are nowadays frequently used in human
sciences, although both technologies are usually used separately. However, measuring both
eye and body movements simultaneously would offer great potential for investigating crossmodal
interaction in human (e.g. music and language-related) behavior. Here we combined
an Ergoneers Dikablis head mounted eye tracker with a Qualisys Oqus optical motion capture
system. In order to synchronize the recordings of both devices, we developed a generalizable
solution that does not rely on any (cost-intensive) ready-made / company-provided
synchronization solution. At the beginning of each recording, the participant nods quickly
while fixing on a target while keeping the eyes open – a motion yielding a sharp vertical
displacement in both mocap and eye data. This displacement can be reliably detected with
a peak-picking algorithm and used for accurately aligning the mocap and eye data. This
method produces accurate synchronization results in the case of clean data and therefore
provides an attractive alternative to costly plug-ins, as well as a solution in case ready-made
synchronization solutions are unavailable.
...
Julkaisija
European Group for Eye Movement ResearchISSN Hae Julkaisufoorumista
1995-8692Asiasanat
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https://converis.jyu.fi/converis/portal/detail/Publication/28248744
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